Milestone one: the pane becomes the cockpit

FPV play begins. On your turn the pane takes the helm: arrows or WASD
— quarter-turns are free camera, a stride issues a REAL move command
through the same cautions and refusals as a board click, and a wall
bounces you with the table's own toast. While the player steers, the
director keeps its hands off the idle facings; your own magic still
turns your head, and cutaways still fire. The layout inverts to match
the mode: the 3D view is the primary window into the game, the
top-down board reduced to a keymap beneath it, with the control hint
in the pane's corner. Typing in chat is never hijacked.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

packages/web/src/LiveFirstPerson.svelte

@@ -12,14 +12,17 @@
   import { castRay } from "./fpv/raycast";
   import { aimOfEvents, gatherGlides, hurledIn, shortestArc } from "./fpv/director";
   import { untrack } from "svelte";
-  import type { GameEvent, GameView } from "@wizwar/engine";
+  import type { GameEvent, GameView, Side } from "@wizwar/engine";
 
-  let { view, batch, onhide }: {
+  let { view, batch, onhide, onstride = null, canStride = false }: {
     view: GameView;
     /** The latest live event batch, numbered so each plays once, with
      * the view the server sent alongside it. */
     batch: { n: number; events: GameEvent[]; view: GameView } | null;
     onhide: () => void;
+    /** Issue a real move command: the pane is the cockpit on your turn. */
+    onstride?: ((side: Side) => void) | null;
+    canStride?: boolean;
   } = $props();
 
   const povId = $derived(view.you);
@@ -27,6 +30,44 @@
 
   const cam = $state({ x: 0, y: 0, facing: 0 });
   let camReady = false;
+  /** While the player steers, the director keeps its hands off the
+   * idle facings (actor-watching, corridor rescue); aims and cutaways
+   * still fire — your own magic always turns your head. */
+  let manualUntil = 0;
+  let turning = false;
+
+  const SIDES4 = ["E", "S", "W", "N"] as const;
+  function manualTurn(dir: -1 | 1) {
+    if (turning) return;
+    turning = true;
+    manualUntil = performance.now() + 4000;
+    const from = cam.facing;
+    const to = from + dir * (Math.PI / 2);
+    const t0 = performance.now();
+    const tick = (now: number) => {
+      const w = Math.min(1, (now - t0) / 180);
+      cam.facing = from + (to - from) * (w * w * (3 - 2 * w));
+      if (w < 1) requestAnimationFrame(tick);
+      else turning = false;
+    };
+    requestAnimationFrame(tick);
+  }
+  function manualStride(back: boolean) {
+    if (!canStride || !onstride) return;
+    manualUntil = performance.now() + 4000;
+    const q = Math.round(cam.facing / (Math.PI / 2));
+    const side = SIDES4[((q % 4) + 4 + (back ? 2 : 0)) % 4]!;
+    onstride(side);
+  }
+  function onKey(e: KeyboardEvent) {
+    const t = e.target as HTMLElement | null;
+    if (t && (t.tagName === "INPUT" || t.tagName === "TEXTAREA" || t.isContentEditable)) return;
+    const k = e.key.toLowerCase();
+    if (k === "arrowleft" || k === "a") { e.preventDefault(); manualTurn(-1); }
+    else if (k === "arrowright" || k === "d") { e.preventDefault(); manualTurn(1); }
+    else if (k === "arrowup" || k === "w") { e.preventDefault(); manualStride(false); }
+    else if (k === "arrowdown" || k === "s") { e.preventDefault(); manualStride(true); }
+  }
   let cutawayShot = $state(false);
   let fpFx = $state<FpFx[]>([]);
   let actorPos = $state<Record<string, { x: number; y: number }>>({});
@@ -130,7 +171,7 @@
       if (sight.warped || sight.dist < toAim - 0.4) return takeCutaway(ax, ay);
       targetFacing = Math.atan2(ay - ty, ax - tx);
       aimed = true;
-    } else {
+    } else if (performance.now() >= manualUntil) {
       // Another wizard acting in your sight line turns your head.
       const other = actor !== povId ? v.players.find((p) => p.id === actor && p.alive) : null;
       if (other && (other.position.x !== m.position.x || other.position.y !== m.position.y)) {
@@ -143,7 +184,8 @@
         }
       }
     }
-    if (!aimed && (willCut || castRay(v, tx, ty, targetFacing).dist < 0.8)) {
+    if (!aimed && performance.now() >= manualUntil &&
+        (willCut || castRay(v, tx, ty, targetFacing).dist < 0.8)) {
       // Nothing asks to be watched and the eyes would idle nose-to-brick:
       // face the deepest corridor from where the wizard stands.
       let deepest = -1;
@@ -185,12 +227,17 @@
   });
 </script>
 
+<svelte:window onkeydown={onKey} />
+
 {#if me}
   <div class="live-fp">
     <FirstPerson {view} povId={cutawayShot ? "" : povId}
-      x={cam.x} y={cam.y} facing={cam.facing} width={720} height={280}
+      x={cam.x} y={cam.y} facing={cam.facing} width={960} height={400}
       fx={fpFx} posOverride={actorPos} />
     <button class="live-fp-hide" onclick={onhide} title="hide (re-enable in preferences)">✕</button>
+    {#if canStride}
+      <div class="live-fp-hint">← → turn · ↑ ↓ walk</div>
+    {/if}
   </div>
 {/if}
 
@@ -212,4 +259,13 @@
     padding: 0.1rem 0.4rem;
   }
   .live-fp-hide:hover { color: #e9e1cb; }
+  .live-fp-hint {
+    position: absolute;
+    bottom: 0.45rem;
+    left: 0.6rem;
+    color: rgba(233, 225, 203, 0.55);
+    font-family: "Courier Prime", monospace;
+    font-size: 0.7rem;
+    pointer-events: none;
+  }
 </style>